Expired timestamp, yours 1555404800, ours 1556057431
OAuthRequest Object ( [parameters:protected] => Array ( [oauth_consumer_key] => key [oauth_nonce] => eb3e3fa8a424ff21e64bc4e2c1b8affe [oauth_signature] => secret&requestsecret [oauth_signature_method] => PLAINTEXT [oauth_timestamp] => 1555404800 [oauth_token] => requestkey [oauth_version] => 1.0 ) [http_method:protected] => GET [http_url:protected] => http://oauthbin.com:/v1/access-token?oauth_consumer_key=key&oauth_nonce=eb3e3fa8a424ff21e64bc4e2c1b8affe&oauth_signature=secret%26requestsecret&oauth_signature_method=PLAINTEXT&oauth_timestamp=1555404800&oauth_token=requestkey&oauth_version=1.0 [base_string] => )